Results 171 to 180 of about 2,276 (208)
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2019 32nd IEEE International System-on-Chip Conference (SOCC), 2019
The paper presents two radar transceivers operating at Ku-band. These radar transceivers are of complete design employing blocks from frontend to backend and support high-resolution synthetic aperture radar imaging, aiming at the application in human activity sensing.
Liheng Lou +7 more
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The paper presents two radar transceivers operating at Ku-band. These radar transceivers are of complete design employing blocks from frontend to backend and support high-resolution synthetic aperture radar imaging, aiming at the application in human activity sensing.
Liheng Lou +7 more
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RF-Driver and Waveform System of X-band inverse synthetic aperture radar (ISAR)
2012 International Conference on Microwave and Millimeter Wave Technology (ICMMT), 2012Inverse synthetic aperture radar (ISAR) is an important branch of the synthetic aperture radar (SAR). It has ability of high-resolution imaging on distant targets, so it has great potential for long-range goals. This article discusses the method of RF-Driver and Waveform System on X-Band Inverse Synthetic Aperture Radar (ISAR), analysis of the ...
Cheng Yan-ping +6 more
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The use of entropy to focus inverse synthetic aperture radar (ISAR) images
Proceedings Electronic Technology Directions to the Year 2000, 2002Inverse synthetic aperture radar (ISAR) images generated of targets which have a large angle of rotation or non-linear rotational motion are blurred if the rotational motion is not taken into account. If the rotational motion is known, the data can be corrected by resampling from the polar grid on which the data is collected, to a rectangular grid.
Y. Mohan-Ram, L.C. Jain
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An eigenvector approach for inverse synthetic aperture radar (ISAR) motion compensation and imaging
TENCON '97 Brisbane - Australia. Proceedings of IEEE TENCON '97. IEEE Region 10 Annual Conference. Speech and Image Technologies for Computing and Telecommunications (Cat. No.97CH36162), 2002Inverse synthetic aperture radar (ISAR) is a high resolution imaging radar. The image reconstruction of ISAR involves two steps; motion compensation and image formation. In this paper, an eigenvector approach is proposed to carry out ISAR motion compensation.
null Zhishun She, R.E. Bogner, D.A. Gray
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IEE Proceedings - Radar, Sonar and Navigation, 2003
Large distortion in ISAR images of a moving target has been investigated and demonstrated under controlled experiments. The distortion is a result of small time-varying perturbed motion experienced by the target and is attributed to a modulation effect in the phase of the radar return from the target.
S.K. Wong, G. Duff, E. Riseborough
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Large distortion in ISAR images of a moving target has been investigated and demonstrated under controlled experiments. The distortion is a result of small time-varying perturbed motion experienced by the target and is attributed to a modulation effect in the phase of the radar return from the target.
S.K. Wong, G. Duff, E. Riseborough
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SPIE Proceedings, 1989
High range resolution X-band Inverse Synthetic Aperture Radar (ISAR) using stepped frequency waveforms is described. Target images are produced by performing inverse Fourier transform in range dimension and linear predictive coding in the cross-range dimension.
D. Nandagopal +5 more
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High range resolution X-band Inverse Synthetic Aperture Radar (ISAR) using stepped frequency waveforms is described. Target images are produced by performing inverse Fourier transform in range dimension and linear predictive coding in the cross-range dimension.
D. Nandagopal +5 more
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2019 International Conference on Electromagnetics in Advanced Applications (ICEAA), 2019
We recently described a technique called basis pursuit dictionary editing (BDPE) that uses L1 minimization techniques to remove contamination from ISAR measurements and imagery of rotating targets [1]. While our original BPDE technique works well when the target scattering is dominated by literal (non-interacting) returns, non-literal target scattering,
Ivan J. LaHaie +2 more
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We recently described a technique called basis pursuit dictionary editing (BDPE) that uses L1 minimization techniques to remove contamination from ISAR measurements and imagery of rotating targets [1]. While our original BPDE technique works well when the target scattering is dominated by literal (non-interacting) returns, non-literal target scattering,
Ivan J. LaHaie +2 more
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2007 IEEE Radar Conference, 2007
This paper will present the findings associated with data eclipsing effects in the inverse polar format algorithm (IPFA) for turntable spotlight inverse synthetic aperture radar (ISAR) imaging systems. Typical turntable ISAR systems illuminate a scene of interest with an electromagnetic source in order to obtain samples of the reflectivity function ...
Scott D. Fisher +2 more
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This paper will present the findings associated with data eclipsing effects in the inverse polar format algorithm (IPFA) for turntable spotlight inverse synthetic aperture radar (ISAR) imaging systems. Typical turntable ISAR systems illuminate a scene of interest with an electromagnetic source in order to obtain samples of the reflectivity function ...
Scott D. Fisher +2 more
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Optical Engineering, 1982
This paper is a preliminary report on investigations into the effects of data reduction on inverse synthetic aperture radar (ISAR) image quality and classifier performance. The case considered here is the effect of decimating the ISAR radar returns. Decimation of the type described induces image aliasing because of the signal processing involved in ...
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This paper is a preliminary report on investigations into the effects of data reduction on inverse synthetic aperture radar (ISAR) image quality and classifier performance. The case considered here is the effect of decimating the ISAR radar returns. Decimation of the type described induces image aliasing because of the signal processing involved in ...
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2019
ISAR imaging of dynamic target is very significant in real applications. Plenty of available outcomes have been acquired by the scholars in the near years. Considering the accuracy and the computational complexity, the radar echo can be described as multicomponent QFM signal after envelope alignment with initial phase calibration.
Yong Wang, Aijun Liu, Qingxiang Zhang
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ISAR imaging of dynamic target is very significant in real applications. Plenty of available outcomes have been acquired by the scholars in the near years. Considering the accuracy and the computational complexity, the radar echo can be described as multicomponent QFM signal after envelope alignment with initial phase calibration.
Yong Wang, Aijun Liu, Qingxiang Zhang
openaire +1 more source